CVE-2023-1252

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in
how a user triggers several file operations simultaneously with the overlay
FS usage. This flaw allows a local user to crash or potentially escalate
their privileges on the system. Only if patch 9a2544037600 (“ovl: fix use
after free in struct ovl_aio_req”) not applied yet, the kernel could be
affected.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=2176140&gt;